CaratHunter
Plans
Marquise|Natural|GIA

1.51ct K SI2 Marquise Natural Diamond

VG • K/SI2 • GIA 2556257527

Certificate GIA 2556257527

Diamond specifications and retailer prices

From $5,589 CAD
As of November 5, 2026
Save $6,585 CAD (54%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $13,018 CAD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2556257527. Listed at 14 retailers as of November 4, 2026, with a 118% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
K
Color
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556257527
Dimensions10.91 × 5.89 × 3.88 mm
L/W Ratio1.85
Girdle conditionFaceted
Top View
10.91 mm5.89 mm1.51 ctK / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556257527
Side View
Table 57.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 65.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $11,329 CAD|Low: $5,589 CAD|High: $12,544 CAD|Avg: $7,568 CAD|-3.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 3$5,589 CAD
Retailer 7$5,613 CAD
Retailer 12$6,065 CAD
Retailer 4$6,208 CAD
Retailer 10$6,304 CAD
Retailer 2$6,409 CAD
Retailer 6$6,704 CAD
Retailer 13$6,835 CAD
Retailer 8$7,232 CAD
Retailer 5$7,378 CAD
Retailer 11$8,525 CAD
Retailer 1$11,329 CAD
Retailer 9$12,174 CAD

27 data points across 13 retailers

14 retailers$5,589 CAD to $12,174 CAD

A
Cheapest Retailer
-
$5,589 CAD
A
Retailer 2
-
$5,613 CAD
View
A
Retailer 3
-
$6,065 CAD
View
B+
Retailer 4
-
$6,208 CAD
View
A
Retailer 5
-
$6,304 CAD
View
B+
Retailer 6
-
$6,409 CAD
View
Final sale: no returns
B+
Retailer 7
-
$6,704 CAD
View
B+
Retailer 8
-
$6,835 CAD
View
B+
Retailer 9
-
$7,232 CAD
View
B+
Retailer 10
-
$7,378 CAD
View
B+
Retailer 11
-
$8,525 CAD
View
B
Retailer 12
-
$11,329 CAD
View
B
Retailer 13
-
$12,174 CAD
View
Most Expensive
NZ Jewellers
8d27364e-0cc6-4b8a-ac56-fb8dae0ef48c · Sep 25
$13,018 CAD
$9,321 USD
View
Price last confirmed 42 days ago
13 more retailers have this diamond
Prices start from $5,589 CADSave up to $6,585 CAD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.51ct Marquise
$5,589 CAD